#include <net/llc_s_st.h>
#include <net/llc_pdu.h>
-/**
- * struct llc_station - LLC station component
- *
- * SAP and connection resource manager, one per adapter.
- *
- * @state: state of station
- * @xid_r_count: XID response PDU counter
- * @mac_sa: MAC source address
- * @sap_list: list of related SAPs
- * @ev_q: events entering state mach.
- * @mac_pdu_q: PDUs ready to send to MAC
- */
-struct llc_station {
- u8 state;
- u8 xid_r_count;
- struct timer_list ack_timer;
- u8 retry_count;
- u8 maximum_retry;
- struct {
- struct sk_buff_head list;
- spinlock_t lock;
- } ev_q;
- struct sk_buff_head mac_pdu_q;
-};
-
-#define LLC_STATION_ACK_TIME (3 * HZ)
-
-int sysctl_llc_station_ack_timeout = LLC_STATION_ACK_TIME;
-
-/* Types of events (possible values in 'ev->type') */
-#define LLC_STATION_EV_TYPE_SIMPLE 1
-#define LLC_STATION_EV_TYPE_CONDITION 2
-#define LLC_STATION_EV_TYPE_PRIM 3
-#define LLC_STATION_EV_TYPE_PDU 4 /* command/response PDU */
-#define LLC_STATION_EV_TYPE_ACK_TMR 5
-#define LLC_STATION_EV_TYPE_RPT_STATUS 6
-
-/* Events */
-#define LLC_STATION_EV_ENABLE_WITH_DUP_ADDR_CHECK 1
-#define LLC_STATION_EV_ENABLE_WITHOUT_DUP_ADDR_CHECK 2
-#define LLC_STATION_EV_ACK_TMR_EXP_LT_RETRY_CNT_MAX_RETRY 3
-#define LLC_STATION_EV_ACK_TMR_EXP_EQ_RETRY_CNT_MAX_RETRY 4
-#define LLC_STATION_EV_RX_NULL_DSAP_XID_C 5
-#define LLC_STATION_EV_RX_NULL_DSAP_0_XID_R_XID_R_CNT_EQ 6
-#define LLC_STATION_EV_RX_NULL_DSAP_1_XID_R_XID_R_CNT_EQ 7
-#define LLC_STATION_EV_RX_NULL_DSAP_TEST_C 8
-#define LLC_STATION_EV_DISABLE_REQ 9
-
-struct llc_station_state_ev {
- u8 type;
- u8 prim;
- u8 prim_type;
- u8 reason;
- struct list_head node; /* node in station->ev_q.list */
-};
-
-static __inline__ struct llc_station_state_ev *
- llc_station_ev(struct sk_buff *skb)
-{
- return (struct llc_station_state_ev *)skb->cb;
-}
-
-typedef int (*llc_station_ev_t)(struct sk_buff *skb);
-
-#define LLC_STATION_STATE_DOWN 1 /* initial state */
-#define LLC_STATION_STATE_DUP_ADDR_CHK 2
-#define LLC_STATION_STATE_UP 3
-
-#define LLC_NBR_STATION_STATES 3 /* size of state table */
-
-typedef int (*llc_station_action_t)(struct sk_buff *skb);
-
-/* Station component state table structure */
-struct llc_station_state_trans {
- llc_station_ev_t ev;
- u8 next_state;
- llc_station_action_t *ev_actions;
-};
-
-struct llc_station_state {
- u8 curr_state;
- struct llc_station_state_trans **transitions;
-};
-
-static struct llc_station llc_main_station;
-
-static int llc_stat_ev_enable_with_dup_addr_check(struct sk_buff *skb)
-{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
-
- return ev->type == LLC_STATION_EV_TYPE_SIMPLE &&
- ev->prim_type ==
- LLC_STATION_EV_ENABLE_WITH_DUP_ADDR_CHECK ? 0 : 1;
-}
-
-static int llc_stat_ev_enable_without_dup_addr_check(struct sk_buff *skb)
-{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
-
- return ev->type == LLC_STATION_EV_TYPE_SIMPLE &&
- ev->prim_type ==
- LLC_STATION_EV_ENABLE_WITHOUT_DUP_ADDR_CHECK ? 0 : 1;
-}
-
-static int llc_stat_ev_ack_tmr_exp_lt_retry_cnt_max_retry(struct sk_buff *skb)
-{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
-
- return ev->type == LLC_STATION_EV_TYPE_ACK_TMR &&
- llc_main_station.retry_count <
- llc_main_station.maximum_retry ? 0 : 1;
-}
-
-static int llc_stat_ev_ack_tmr_exp_eq_retry_cnt_max_retry(struct sk_buff *skb)
-{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
-
- return ev->type == LLC_STATION_EV_TYPE_ACK_TMR &&
- llc_main_station.retry_count ==
- llc_main_station.maximum_retry ? 0 : 1;
-}
-
static int llc_stat_ev_rx_null_dsap_xid_c(struct sk_buff *skb)
{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
- return ev->type == LLC_STATION_EV_TYPE_PDU &&
- LLC_PDU_IS_CMD(pdu) && /* command PDU */
+ return LLC_PDU_IS_CMD(pdu) && /* command PDU */
LLC_PDU_TYPE_IS_U(pdu) && /* U type PDU */
LLC_U_PDU_CMD(pdu) == LLC_1_PDU_CMD_XID &&
!pdu->dsap ? 0 : 1; /* NULL DSAP value */
}
-static int llc_stat_ev_rx_null_dsap_0_xid_r_xid_r_cnt_eq(struct sk_buff *skb)
-{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
- struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
-
- return ev->type == LLC_STATION_EV_TYPE_PDU &&
- LLC_PDU_IS_RSP(pdu) && /* response PDU */
- LLC_PDU_TYPE_IS_U(pdu) && /* U type PDU */
- LLC_U_PDU_RSP(pdu) == LLC_1_PDU_CMD_XID &&
- !pdu->dsap && /* NULL DSAP value */
- !llc_main_station.xid_r_count ? 0 : 1;
-}
-
-static int llc_stat_ev_rx_null_dsap_1_xid_r_xid_r_cnt_eq(struct sk_buff *skb)
-{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
- struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
-
- return ev->type == LLC_STATION_EV_TYPE_PDU &&
- LLC_PDU_IS_RSP(pdu) && /* response PDU */
- LLC_PDU_TYPE_IS_U(pdu) && /* U type PDU */
- LLC_U_PDU_RSP(pdu) == LLC_1_PDU_CMD_XID &&
- !pdu->dsap && /* NULL DSAP value */
- llc_main_station.xid_r_count == 1 ? 0 : 1;
-}
-
static int llc_stat_ev_rx_null_dsap_test_c(struct sk_buff *skb)
{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);
- return ev->type == LLC_STATION_EV_TYPE_PDU &&
- LLC_PDU_IS_CMD(pdu) && /* command PDU */
+ return LLC_PDU_IS_CMD(pdu) && /* command PDU */
LLC_PDU_TYPE_IS_U(pdu) && /* U type PDU */
LLC_U_PDU_CMD(pdu) == LLC_1_PDU_CMD_TEST &&
!pdu->dsap ? 0 : 1; /* NULL DSAP */
}
-static int llc_stat_ev_disable_req(struct sk_buff *skb)
-{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
-
- return ev->type == LLC_STATION_EV_TYPE_PRIM &&
- ev->prim == LLC_DISABLE_PRIM &&
- ev->prim_type == LLC_PRIM_TYPE_REQ ? 0 : 1;
-}
-
-/**
- * llc_station_send_pdu - queues PDU to send
- * @skb: Address of the PDU
- *
- * Queues a PDU to send to the MAC layer.
- */
-static void llc_station_send_pdu(struct sk_buff *skb)
-{
- skb_queue_tail(&llc_main_station.mac_pdu_q, skb);
- while ((skb = skb_dequeue(&llc_main_station.mac_pdu_q)) != NULL)
- if (dev_queue_xmit(skb))
- break;
-}
-
-static int llc_station_ac_start_ack_timer(struct sk_buff *skb)
-{
- mod_timer(&llc_main_station.ack_timer,
- jiffies + sysctl_llc_station_ack_timeout);
- return 0;
-}
-
-static int llc_station_ac_set_retry_cnt_0(struct sk_buff *skb)
-{
- llc_main_station.retry_count = 0;
- return 0;
-}
-
-static int llc_station_ac_inc_retry_cnt_by_1(struct sk_buff *skb)
-{
- llc_main_station.retry_count++;
- return 0;
-}
-
-static int llc_station_ac_set_xid_r_cnt_0(struct sk_buff *skb)
-{
- llc_main_station.xid_r_count = 0;
- return 0;
-}
-
-static int llc_station_ac_inc_xid_r_cnt_by_1(struct sk_buff *skb)
-{
- llc_main_station.xid_r_count++;
- return 0;
-}
-
-static int llc_station_ac_send_null_dsap_xid_c(struct sk_buff *skb)
-{
- int rc = 1;
- struct sk_buff *nskb = llc_alloc_frame(NULL, skb->dev, LLC_PDU_TYPE_U,
- sizeof(struct llc_xid_info));
-
- if (!nskb)
- goto out;
- llc_pdu_header_init(nskb, LLC_PDU_TYPE_U, 0, 0, LLC_PDU_CMD);
- llc_pdu_init_as_xid_cmd(nskb, LLC_XID_NULL_CLASS_2, 127);
- rc = llc_mac_hdr_init(nskb, skb->dev->dev_addr, skb->dev->dev_addr);
- if (unlikely(rc))
- goto free;
- llc_station_send_pdu(nskb);
-out:
- return rc;
-free:
- kfree_skb(nskb);
- goto out;
-}
-
static int llc_station_ac_send_xid_r(struct sk_buff *skb)
{
u8 mac_da[ETH_ALEN], dsap;
rc = llc_mac_hdr_init(nskb, skb->dev->dev_addr, mac_da);
if (unlikely(rc))
goto free;
- llc_station_send_pdu(nskb);
+ dev_queue_xmit(nskb);
out:
return rc;
free:
rc = llc_mac_hdr_init(nskb, skb->dev->dev_addr, mac_da);
if (unlikely(rc))
goto free;
- llc_station_send_pdu(nskb);
+ dev_queue_xmit(nskb);
out:
return rc;
free:
goto out;
}
-static int llc_station_ac_report_status(struct sk_buff *skb)
-{
- return 0;
-}
-
-/* COMMON STATION STATE transitions */
-
-/* dummy last-transition indicator; common to all state transition groups
- * last entry for this state
- * all members are zeros, .bss zeroes it
- */
-static struct llc_station_state_trans llc_stat_state_trans_end;
-
-/* DOWN STATE transitions */
-
-/* state transition for LLC_STATION_EV_ENABLE_WITH_DUP_ADDR_CHECK event */
-static llc_station_action_t llc_stat_down_state_actions_1[] = {
- [0] = llc_station_ac_start_ack_timer,
- [1] = llc_station_ac_set_retry_cnt_0,
- [2] = llc_station_ac_set_xid_r_cnt_0,
- [3] = llc_station_ac_send_null_dsap_xid_c,
- [4] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_down_state_trans_1 = {
- .ev = llc_stat_ev_enable_with_dup_addr_check,
- .next_state = LLC_STATION_STATE_DUP_ADDR_CHK,
- .ev_actions = llc_stat_down_state_actions_1,
-};
-
-/* state transition for LLC_STATION_EV_ENABLE_WITHOUT_DUP_ADDR_CHECK event */
-static llc_station_action_t llc_stat_down_state_actions_2[] = {
- [0] = llc_station_ac_report_status, /* STATION UP */
- [1] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_down_state_trans_2 = {
- .ev = llc_stat_ev_enable_without_dup_addr_check,
- .next_state = LLC_STATION_STATE_UP,
- .ev_actions = llc_stat_down_state_actions_2,
-};
-
-/* array of pointers; one to each transition */
-static struct llc_station_state_trans *llc_stat_dwn_state_trans[] = {
- [0] = &llc_stat_down_state_trans_1,
- [1] = &llc_stat_down_state_trans_2,
- [2] = &llc_stat_state_trans_end,
-};
-
-/* UP STATE transitions */
-/* state transition for LLC_STATION_EV_DISABLE_REQ event */
-static llc_station_action_t llc_stat_up_state_actions_1[] = {
- [0] = llc_station_ac_report_status, /* STATION DOWN */
- [1] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_up_state_trans_1 = {
- .ev = llc_stat_ev_disable_req,
- .next_state = LLC_STATION_STATE_DOWN,
- .ev_actions = llc_stat_up_state_actions_1,
-};
-
-/* state transition for LLC_STATION_EV_RX_NULL_DSAP_XID_C event */
-static llc_station_action_t llc_stat_up_state_actions_2[] = {
- [0] = llc_station_ac_send_xid_r,
- [1] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_up_state_trans_2 = {
- .ev = llc_stat_ev_rx_null_dsap_xid_c,
- .next_state = LLC_STATION_STATE_UP,
- .ev_actions = llc_stat_up_state_actions_2,
-};
-
-/* state transition for LLC_STATION_EV_RX_NULL_DSAP_TEST_C event */
-static llc_station_action_t llc_stat_up_state_actions_3[] = {
- [0] = llc_station_ac_send_test_r,
- [1] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_up_state_trans_3 = {
- .ev = llc_stat_ev_rx_null_dsap_test_c,
- .next_state = LLC_STATION_STATE_UP,
- .ev_actions = llc_stat_up_state_actions_3,
-};
-
-/* array of pointers; one to each transition */
-static struct llc_station_state_trans *llc_stat_up_state_trans [] = {
- [0] = &llc_stat_up_state_trans_1,
- [1] = &llc_stat_up_state_trans_2,
- [2] = &llc_stat_up_state_trans_3,
- [3] = &llc_stat_state_trans_end,
-};
-
-/* DUP ADDR CHK STATE transitions */
-/* state transition for LLC_STATION_EV_RX_NULL_DSAP_0_XID_R_XID_R_CNT_EQ
- * event
- */
-static llc_station_action_t llc_stat_dupaddr_state_actions_1[] = {
- [0] = llc_station_ac_inc_xid_r_cnt_by_1,
- [1] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_dupaddr_state_trans_1 = {
- .ev = llc_stat_ev_rx_null_dsap_0_xid_r_xid_r_cnt_eq,
- .next_state = LLC_STATION_STATE_DUP_ADDR_CHK,
- .ev_actions = llc_stat_dupaddr_state_actions_1,
-};
-
-/* state transition for LLC_STATION_EV_RX_NULL_DSAP_1_XID_R_XID_R_CNT_EQ
- * event
- */
-static llc_station_action_t llc_stat_dupaddr_state_actions_2[] = {
- [0] = llc_station_ac_report_status, /* DUPLICATE ADDRESS FOUND */
- [1] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_dupaddr_state_trans_2 = {
- .ev = llc_stat_ev_rx_null_dsap_1_xid_r_xid_r_cnt_eq,
- .next_state = LLC_STATION_STATE_DOWN,
- .ev_actions = llc_stat_dupaddr_state_actions_2,
-};
-
-/* state transition for LLC_STATION_EV_RX_NULL_DSAP_XID_C event */
-static llc_station_action_t llc_stat_dupaddr_state_actions_3[] = {
- [0] = llc_station_ac_send_xid_r,
- [1] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_dupaddr_state_trans_3 = {
- .ev = llc_stat_ev_rx_null_dsap_xid_c,
- .next_state = LLC_STATION_STATE_DUP_ADDR_CHK,
- .ev_actions = llc_stat_dupaddr_state_actions_3,
-};
-
-/* state transition for LLC_STATION_EV_ACK_TMR_EXP_LT_RETRY_CNT_MAX_RETRY
- * event
- */
-static llc_station_action_t llc_stat_dupaddr_state_actions_4[] = {
- [0] = llc_station_ac_start_ack_timer,
- [1] = llc_station_ac_inc_retry_cnt_by_1,
- [2] = llc_station_ac_set_xid_r_cnt_0,
- [3] = llc_station_ac_send_null_dsap_xid_c,
- [4] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_dupaddr_state_trans_4 = {
- .ev = llc_stat_ev_ack_tmr_exp_lt_retry_cnt_max_retry,
- .next_state = LLC_STATION_STATE_DUP_ADDR_CHK,
- .ev_actions = llc_stat_dupaddr_state_actions_4,
-};
-
-/* state transition for LLC_STATION_EV_ACK_TMR_EXP_EQ_RETRY_CNT_MAX_RETRY
- * event
- */
-static llc_station_action_t llc_stat_dupaddr_state_actions_5[] = {
- [0] = llc_station_ac_report_status, /* STATION UP */
- [1] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_dupaddr_state_trans_5 = {
- .ev = llc_stat_ev_ack_tmr_exp_eq_retry_cnt_max_retry,
- .next_state = LLC_STATION_STATE_UP,
- .ev_actions = llc_stat_dupaddr_state_actions_5,
-};
-
-/* state transition for LLC_STATION_EV_DISABLE_REQ event */
-static llc_station_action_t llc_stat_dupaddr_state_actions_6[] = {
- [0] = llc_station_ac_report_status, /* STATION DOWN */
- [1] = NULL,
-};
-
-static struct llc_station_state_trans llc_stat_dupaddr_state_trans_6 = {
- .ev = llc_stat_ev_disable_req,
- .next_state = LLC_STATION_STATE_DOWN,
- .ev_actions = llc_stat_dupaddr_state_actions_6,
-};
-
-/* array of pointers; one to each transition */
-static struct llc_station_state_trans *llc_stat_dupaddr_state_trans[] = {
- [0] = &llc_stat_dupaddr_state_trans_6, /* Request */
- [1] = &llc_stat_dupaddr_state_trans_4, /* Timer */
- [2] = &llc_stat_dupaddr_state_trans_5,
- [3] = &llc_stat_dupaddr_state_trans_1, /* Receive frame */
- [4] = &llc_stat_dupaddr_state_trans_2,
- [5] = &llc_stat_dupaddr_state_trans_3,
- [6] = &llc_stat_state_trans_end,
-};
-
-static struct llc_station_state
- llc_station_state_table[LLC_NBR_STATION_STATES] = {
- [LLC_STATION_STATE_DOWN - 1] = {
- .curr_state = LLC_STATION_STATE_DOWN,
- .transitions = llc_stat_dwn_state_trans,
- },
- [LLC_STATION_STATE_DUP_ADDR_CHK - 1] = {
- .curr_state = LLC_STATION_STATE_DUP_ADDR_CHK,
- .transitions = llc_stat_dupaddr_state_trans,
- },
- [LLC_STATION_STATE_UP - 1] = {
- .curr_state = LLC_STATION_STATE_UP,
- .transitions = llc_stat_up_state_trans,
- },
-};
-
-/**
- * llc_exec_station_trans_actions - executes actions for transition
- * @trans: Address of the transition
- * @skb: Address of the event that caused the transition
- *
- * Executes actions of a transition of the station state machine. Returns
- * 0 if all actions complete successfully, nonzero otherwise.
- */
-static u16 llc_exec_station_trans_actions(struct llc_station_state_trans *trans,
- struct sk_buff *skb)
-{
- u16 rc = 0;
- llc_station_action_t *next_action = trans->ev_actions;
-
- for (; next_action && *next_action; next_action++)
- if ((*next_action)(skb))
- rc = 1;
- return rc;
-}
-
-/**
- * llc_find_station_trans - finds transition for this event
- * @skb: Address of the event
- *
- * Search thru events of the current state of the station until list
- * exhausted or it's obvious that the event is not valid for the current
- * state. Returns the address of the transition if cound, %NULL otherwise.
- */
-static struct llc_station_state_trans *
- llc_find_station_trans(struct sk_buff *skb)
-{
- int i = 0;
- struct llc_station_state_trans *rc = NULL;
- struct llc_station_state_trans **next_trans;
- struct llc_station_state *curr_state =
- &llc_station_state_table[llc_main_station.state - 1];
-
- for (next_trans = curr_state->transitions; next_trans[i]->ev; i++)
- if (!next_trans[i]->ev(skb)) {
- rc = next_trans[i];
- break;
- }
- return rc;
-}
-
-/**
- * llc_station_free_ev - frees an event
- * @skb: Address of the event
- *
- * Frees an event.
- */
-static void llc_station_free_ev(struct sk_buff *skb)
-{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
-
- if (ev->type == LLC_STATION_EV_TYPE_PDU)
- kfree_skb(skb);
-}
-
-/**
- * llc_station_next_state - processes event and goes to the next state
- * @skb: Address of the event
- *
- * Processes an event, executes any transitions related to that event and
- * updates the state of the station.
- */
-static u16 llc_station_next_state(struct sk_buff *skb)
-{
- u16 rc = 1;
- struct llc_station_state_trans *trans;
-
- if (llc_main_station.state > LLC_NBR_STATION_STATES)
- goto out;
- trans = llc_find_station_trans(skb);
- if (trans) {
- /* got the state to which we next transition; perform the
- * actions associated with this transition before actually
- * transitioning to the next state
- */
- rc = llc_exec_station_trans_actions(trans, skb);
- if (!rc)
- /* transition station to next state if all actions
- * execute successfully; done; wait for next event
- */
- llc_main_station.state = trans->next_state;
- } else
- /* event not recognized in current state; re-queue it for
- * processing again at a later time; return failure
- */
- rc = 0;
-out:
- llc_station_free_ev(skb);
- return rc;
-}
-
-/**
- * llc_station_service_events - service events in the queue
- *
- * Get an event from the station event queue (if any); attempt to service
- * the event; if event serviced, get the next event (if any) on the event
- * queue; if event not service, re-queue the event on the event queue and
- * attempt to service the next event; when serviced all events in queue,
- * finished; if don't transition to different state, just service all
- * events once; if transition to new state, service all events again.
- * Caller must hold llc_main_station.ev_q.lock.
- */
-static void llc_station_service_events(void)
-{
- struct sk_buff *skb;
-
- while ((skb = skb_dequeue(&llc_main_station.ev_q.list)) != NULL)
- llc_station_next_state(skb);
-}
-
-/**
- * llc_station_state_process - queue event and try to process queue.
- * @skb: Address of the event
- *
- * Queues an event (on the station event queue) for handling by the
- * station state machine and attempts to process any queued-up events.
- */
-static void llc_station_state_process(struct sk_buff *skb)
-{
- spin_lock_bh(&llc_main_station.ev_q.lock);
- skb_queue_tail(&llc_main_station.ev_q.list, skb);
- llc_station_service_events();
- spin_unlock_bh(&llc_main_station.ev_q.lock);
-}
-
-static void llc_station_ack_tmr_cb(unsigned long timeout_data)
-{
- struct sk_buff *skb = alloc_skb(0, GFP_ATOMIC);
-
- if (skb) {
- struct llc_station_state_ev *ev = llc_station_ev(skb);
-
- ev->type = LLC_STATION_EV_TYPE_ACK_TMR;
- llc_station_state_process(skb);
- }
-}
-
/**
* llc_station_rcv - send received pdu to the station state machine
* @skb: received frame.
*/
static void llc_station_rcv(struct sk_buff *skb)
{
- struct llc_station_state_ev *ev = llc_station_ev(skb);
-
- ev->type = LLC_STATION_EV_TYPE_PDU;
- ev->reason = 0;
- llc_station_state_process(skb);
+ if (llc_stat_ev_rx_null_dsap_xid_c(skb))
+ llc_station_ac_send_xid_r(skb);
+ else if (llc_stat_ev_rx_null_dsap_test_c(skb))
+ llc_station_ac_send_test_r(skb);
+ kfree_skb(skb);
}
void __init llc_station_init(void)
{
- skb_queue_head_init(&llc_main_station.mac_pdu_q);
- skb_queue_head_init(&llc_main_station.ev_q.list);
- spin_lock_init(&llc_main_station.ev_q.lock);
- setup_timer(&llc_main_station.ack_timer, llc_station_ack_tmr_cb,
- (unsigned long)&llc_main_station);
- llc_main_station.ack_timer.expires = jiffies +
- sysctl_llc_station_ack_timeout;
- llc_main_station.maximum_retry = 1;
- llc_main_station.state = LLC_STATION_STATE_UP;
llc_set_station_handler(llc_station_rcv);
}
projects / karo-tx-linux.git / blobdiff